Rarity unleashes a powerful magic to protect Spike !
This is a spoiler for the finale’s trailer. I am uploading this badass moment as well. I can’t wait to see that battle even if I will be crying the entire time !
Here is my headcanon of what may happen:
Mane 6 is separated, Rarity, Spike and maybe someone else ends up in front of hrysalis. Chrysalis attacks Rarity but Spike, being Spike, takes a hit on himself. Chrysalis senses Spike’s strong love towards Rairty and wants to consume it but despair and rage after Spike getting hurt and not giving any signs of life awakens Rarity’s new powerful magic
A. She wants to let it cool off and sooth naturally.
B. She actually have feelings for him but in denial at the same time.
C. She fears to lose what they already have because options look bleak.
D. She just wants to enjoy the sweetness as long as she could.
Yeah, I think that she would like to kill him too. Both are very good motivations for Rarity. Yeah, two versions are equally relevant
Edited
I actually thought about it to be as close to the canonical outcome as it can be. I really hope it will happen, both as a Sparity shipper and devoted fan who wants a beautiful finale for this amazing series.
Edited